Plant Growth and Development Question 51
51. Auxetic growth is
[1994]
(a) increase in cell volume only
(b) increase in cell number only
(c) increase in fatty tissue
(d) increase in intercellular material
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Answer : a
Hints & Solutions
(a) Three types of growth are present in multicellular animals :
(i) Auxetic growth: Increase in cell volume only, not in number.
(ii) Multiplication growth : Increase in number, not in volume.
(iii) Accretionary growth : Growth is due to mitotic division of some special type of cells occurring in specific locations of body.
